Screw driver



G. w. SCOTT 2,352,917

SCREW DRIVER Jul 4, 1944.

Filed Feb. 15; 1945 Gilberi W. Scoifi Patented July 4,1944

UNITED STATES PATENT oi-"Flcs SCREW DRIVER Gilbert w. Scott,Jacksonville, 111. Application February 15, 1943, Serial No. 475,979

1 Claim.

This invention relates to the, omcial class of hand tools and moreparticularly screw drivers.

The primary object of this invention resides in the provision of a screwdriver adapted to tighten and remove both small and large screws fromscissors, shears and the like.

Another object of this invention resides in the provision of meansadapted to securely retain the screw driver .blade in the kerfs of thescrews of scissors and the like.

A further object of this invention resides in the provision of meanadapted to retain the screw driver blade in various positions relativeto its handle.

A still further object of this invention resides in the provision ofmeans adapted to prevent the scissors or the like from slipping fromthel'aws of the handle.

Among thesalient features of this-invention is the provision of meanswhereby the screw driver blade will be firmly in engagement with thescrews of scissors and the like for operation thereon under leverage ofits supporting handle.

With these and other objects in view, this invention resides in certainnovel features of construction and arrangement of elements to behereinafter more particularly set forth in the specification,illustrated in the accompanying drawing and pointed out in the appendedclaim and, while this disclosure depicts my present conception of theinvention, the right is reserved to resort to such changes inconstruction and arrangement of elements as fall within the spirit ofthe invention.

In the accompanying drawing forming a part of this application:

Fig. 1 is a side view of the screw driver.

Fig. 2 is a'plan view thereof.

Fig. 3 is a perspective view of the front portion of the screw driver.

Fig. 4 is a perspective view of the screw driver blade per se.

Fig. 5 is a perspective view of the screw driver blade retaining block.v

Fig. 6 is a perspective'view of the scissor supporting block. I

In the present illustration of this invention the numeral 5 designates,in general, a screw driver consisting of a lever 6 herein disclosed inthe form of pivoted upper andlower jaws 1 and 8 provided with handles 9of plier like style and operation. Secured to the opposed surfaces ofthe aforesaid jaws, as by welding or the like, are hardened steel blocksIII and II, the former of which is provided with a central hole l2,regis-.

tering with a hole I3 extending through the upper Jaw I, and angularlydisposed grooves I, while the latter of which is provided with a concaveupper surface I! to receive the protruding end of the pivotal screw of apair of scissors or shears resting on the block I I.

Slidably extending through the aforesaid holes I2 and I3 is an elongatedshank ll formed on a screw driver blade l1 and surrounding the shank isan expansion coil spring l8 which exerts its pressure between the uppersurface of the jaw I and a head is secured to the free end of the shank,said spring acts to retain the inner or upper portion of the screwdriver blade in an elected groove H of the block Ill so as to disposethe same at different angles relative to the handle.

The aforesaid embodiment is adapted to operate on large screws pivotallyconnecting the blades of large sizes of scissors, shear and the likeand, in order to also utilize the tool in removing and tightening smallscrews of the smaller sizes of scissors and the like, the structureheretofore set forth is reproduced in smaller size and disposed on thehandles of the tool as indicated, in general, by the letter A, adescription of which is thought unnecessary as the structure andembodiment thereof is precisely that heretofore set forth.

With a screw driver constructed in accordance with this invention it issimply necessary to dispose a pair of shears between the jaws orhandles, according to the size thereof, with the outer or free end ofthe pivotal screw therein set over the concave surface I5 in the block II, whereupon, the screw driver blade i'l previously seated in' anelected groove I4, is brought in contact with the kerf in the screw andfirmly held therein as the jaws 1 and B are held closed by the operatorgrasping the handles 9. With the screw driver blade so held into flrmengagement with the screws of scissors, the operator of the tool isenabled to readily remove extremely tight screws from scissors and thelike simply by partially rotating the tool on the axis of the screw, itbeing apparent tightening of the screws is facilitated by reversal ofsaid operation. Through the instrumentality of a tool of this character,it is apparent pivotal screws of both large and small scissors and thelike can be readily operated on without distortion of the kerfs thereinand, through the simplicity of construction of the tool, operationthereof by unskilled individuals is permitted.

Having thus described my invention what I claim and desire to protect byLetters Patent is:

A screw driver comprising, a pair 01' for]: shape pivoted jaws, blocksconnecting the free ends of the jaws, one of said block having anaperture extending therethroush in axial alignment with 5 the center ofthe other block and having radially disposed grooves in it inner surfaceand the other block having a concave upper surface opposed to theaforesaid aperture, a screw driver blade having its base portionextending across 10 GILBERT W. SCOTT.

